RigidbodyConstraints2D

Description

Use these flags to constrain motion of a Rigidbody2D.

Common use cases include:

• Freezing rotation for characters that shouldn't rotate when moving, such as in platformers.
• Freezing the X axis for objects that should only move vertically, such as elevators.
• Freezing the Y axis for objects that should only move horizontally, such as platforms that characters jump on.

Note: You can combine multiple constraints using the bitwise OR operator (|) to create custom combinations of frozen axes.

Additional resources: Rigidbody2D.constraints.

using UnityEngine;

// This script demonstrates how to freeze the rotation of a Rigidbody2D component
public class Example : MonoBehaviour
{
    private Rigidbody2D rb;

    private void Awake()
    {
        // Fetch the Rigidbody2D component
        rb = GetComponent<Rigidbody2D>();
        // Freeze the rotation of the Rigidbody2D component
        rb.constraints = RigidbodyConstraints2D.FreezeRotation;
    }

    private void Update()
    {
        // If the space key is pressed, add an impulse force to the Rigidbody2D component
        if (Input.GetKeyDown(KeyCode.Space))
        {
            rb.AddForce(Vector2.up * 10, ForceMode2D.Impulse);
        }
    }
}

Properties